Spain’s biggest burger export has arrived in Britain. The McExtreme joined McDonald’s UK menus on Tuesday 20 October 2026 as part of the second wave of the World Menu Heist — and unlike some limited-edition burgers that rely on one weird topping, this one is a straight-up, bigger, bacon-loaded take on the classic bacon cheeseburger.
Prices are approximate and vary by restaurant.
Quick facts
- Launched: 20 October 2026, UK and Ireland
- Origin: Spain
- Price: £8.99 on its own, £11.09 as a medium meal
- Calories: 935 kcal (burger only)
- Availability: limited time only — McDonald’s has not confirmed a final end date for this wave
What’s inside the McExtreme?
Two 100% British and Irish beef patties, layered with bacon, crispy onions and cheese slices, finished with a creamy baconnaise sauce, all served in a toasted glazed sesame seed bun.
That is the whole pitch, and it is a good one: no gimmick, just familiar flavours stacked higher. The crispy onions add crunch, the baconnaise ties the beef, bacon and cheese together, and the glazed bun gives it a slightly sweeter, richer finish than a standard sesame bun.
McExtreme prices
| Item | Price |
|---|---|
| McExtreme (burger only) | £8.99 |
| McExtreme medium meal | £11.09 |
These are McDonald’s most-common UK prices, confirmed by multiple UK outlets at launch. Delivery prices are higher — Deliveroo listings for London restaurants show the burger alone at around £10.19–£10.99 depending on the branch — so expect to pay more if you order in rather than buying in restaurant.
For context, the McExtreme sits well above the everyday Big Mac on price, but it is a double-patty burger with bacon, so it is competing with the chain’s other big burgers rather than the Saver Menu. If you want the cheapest way to try it, buy the burger on its own rather than as a meal, and add your own fries and drink if you already have a deal in the app.
McExtreme calories and nutrition
The McExtreme burger alone contains 935 kcal. That puts it firmly in indulgent territory — roughly comparable to other double-patty burgers on the menu — so it is a treat burger rather than an everyday lunch. McDonald’s publishes full allergen and nutrition information on its UK website, and anyone with allergies should check that before ordering, as the burger contains beef, bacon, cheese and a glazed bun.
How long is the McExtreme available?
Here is where you need to be careful. McDonald’s has not confirmed a final end date for the second Heist wave, which includes the McExtreme. The first wave of Heist items — including the Mac & Cheese Triangles, Paprika McShaker Fries, S’mores McFlurry, Szechuan Sauce and the two international McMuffins — is scheduled to run until 16 November 2026. The second-wave items, including the McExtreme, are listed simply as “limited time only”.
The safest reading, backed by UK coverage of the launch, is that the McExtreme and its wave-2 companions are expected to stay until at least mid-to-late November, when they are likely to be replaced by the Christmas festive menu, which launches on 20 November 2026. Do not assume it will still be there in December — if you want to try it, go before the festive menu arrives.
What else arrived with it?
The McExtreme did not come alone. The 20 October wave also brought China’s Chicken McWings — the first time McDonald’s has sold chicken wings in the UK — Germany’s Twix White Salted Caramel McFlurry, and Singapore’s Peach x Sprite Zero. Together with the surviving first-wave items, that makes the current Heist menu one of the biggest limited-time line-ups McDonald’s UK has run.
If you are planning a Heist tasting run, the McExtreme pairs naturally with the McWings as a main-plus-side combo, and the Twix McFlurry as the dessert finish. See our guides to Chicken McWings and when the Heist ends for the full picture.
Is the McExtreme worth it?
If you like bacon cheeseburgers, yes — this is McDonald’s UK doing that idea at its biggest. Two patties, bacon, cheese and a bacon-flavoured sauce leave very little room for disappointment, and at £8.99 it is priced as a premium limited burger, not a budget bite. If you prefer lighter or cheaper options, the Snack Wrap at £1.99 or the Saver Menu will suit you better — the McExtreme is 935 kcal of unapologetic indulgence.
The one real risk is timing. Because McDonald’s has not put a firm end date on it, the McExtreme could disappear with little warning when the festive menu lands. Try it while the Heist is still running, and check the app before you travel specially for it.
FAQ
How much is the McExtreme in the UK?
£8.99 on its own, or £11.09 as a medium meal, at most-common UK pricing. Prices vary by restaurant and are higher on delivery apps.
What is in the McExtreme?
Two 100% British and Irish beef patties, bacon, crispy onions, cheese slices and baconnaise sauce in a toasted glazed sesame seed bun.
How many calories are in the McExtreme?
935 kcal for the burger alone.
When did the McExtreme launch in the UK?
20 October 2026, as part of World Menu Heist wave 2.
When does the McExtreme leave the UK menu?
McDonald’s has not confirmed a final date for wave 2. It is expected to run until mid-to-late November 2026, ahead of the Christmas menu on 20 November — but treat that as an expectation, not a confirmed end date.
Is the McExtreme from Spain?
Yes — it is Spain’s entry in the World Menu Heist, which brings McDonald’s items from other countries to the UK.
Conclusion
The McExtreme is Spain’s answer to the bacon cheeseburger, supersized: two beef patties, bacon, crispy onions, cheese and baconnaise for £8.99. It launched on 20 October 2026 and is only here for a limited time, with no confirmed end date — so if it sounds like your kind of burger, do not leave it until December. Check the full Heist end dates in our World Menu Heist end-date guide before you go.
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